Nissan Motor Company Limited

Kazuki Iijima

Yuki Fujita

Osamu Ooki

Takeo Aizawa

A driving assistance device includes a malfunction detection unit configured to detect a plurality of malfunctions in devices mounted on a vehicle, a candidate selection unit configured to select candidates for a plurality of actions urged on a driver in accordance with the plural malfunctions detected by the malfunction detection unit, a priority determination unit configured to choose a candidate having a higher priority as an action urged on the driver from the candidates for the plural actions selected by the candidate selection unit, and an information unit configured to inform the driver of the action to be urged on the driver chosen by the priority determination unit.

Driving assistance method and driving assistance device

It is a control method of a hybrid vehicle that includes an engine and an electrical power generation motor that is connected with the engine for controlling a rotational speed of the engine to be a target rotational speed. When an failure with respect to the engine is judged, an upper limit of a target rotational speed of a firing operation is set to a first upper limit rotational speed lower than an upper limit for a normal state. Further, a target rotational speed of a motoring operation is set to be not higher than the first upper limit rotational speed. It becomes possible to carry out transition between the firing operation and the motoring operation quickly.

Control method and control apparatus of hybrid vehicle

An ECM determines a failure exist and a failure site in a control valve device from first and second failure diagnoses. In the first failure diagnosis, a failure is determined to have occurred if an opening amount that represents an absolute value of a difference between a detected opening amount and a target opening amount of a valve body is greater than a preset threshold when the target opening amount of the valve body is constant for a predetermined time. In the second failure diagnosis, a failure is determined to have occurred if an opening amount that represents the absolute value of the difference between the opening amount of the valve body when fully open or fully closed and the detected opening amount is greater than the preset threshold when a portion rotating integrally with the valve body has been pressed against a stopper continuously for a predetermined time.

Valve control device

An air intake device for an internal combustion engine of the present invention includes a water discharge passage extending from a bottom surface of a control valve housing part recessed in a housing passage forming part of an air intake passage to an air intake port. The water discharge passage is formed independently from the air intake passage, and includes: a water collection groove recessed in the bottom surface; a water discharge hole formed penetrating a cover of a valve control housing; and a water discharge hole penetrating a flange part of an insert inserted into the air intake port. The downstream end of the water discharge hole is connected to a space defined between an air intake port inner wall surface and an insert cylindrical part.

Air intake device for internal combustion engine

A water temperature indicated at a startup timing of an engine is stored as a startup-timing water temperature. During an idling state generated after a cold start, a retard amount (S) is calculated based on the startup-timing water temperature. At this time, the retard amount (S) is set at a larger level as the startup-timing water temperature becomes higher. However, in a case that the startup-timing water temperature is higher than a predetermined temperature, the retard amount (S) is set at a smaller level as the startup-timing water temperature becomes higher. A retard amount (R) is calculated based on a current water temperature in the same manner as the retard amount (S). A smaller one is selected from the retard amount (S) and the retard amount (R), as a basic retard amount.

Ignition timing control device of internal combustion engine

A control device for a vehicle configured to automatically stop an engine while the vehicle is running, the control device includes: an engine stop request outputted in accordance with an operation of a driver, and an engine stop prohibition request outputted based on a driving state of the vehicle which are independent requests, the higher-priority engine stop request being preferentially performed when both the requests are simultaneously outputted, and the engine stop prohibition request being withdrawn when the engine stop is performed by the higher-priority engine stop request.

Growing community of inventors

Kanagawa, Japan

Kazuki Iijima